Property Dispositions - Additional Information (Detail) $ in Thousands		3 Months Ended																12 Months Ended
		Dec. 31, 2019 USD ($)	[1]	Sep. 30, 2019 USD ($)	[1]	Jun. 30, 2019 USD ($)	[1]	Mar. 31, 2019 USD ($)	[1]	Dec. 31, 2018 USD ($)	[1]	Sep. 30, 2018 USD ($)	[1]	Jun. 30, 2018 USD ($)	[1]	Mar. 31, 2018 USD ($)	[1]	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($) a Boe
Property Acquisition And Dispositions [Line Items]
Proceeds from Sale of Oil and Gas Property and Equipment																		$ 85,300	$ 54,500
Proceeds from sale of assets																		88,734	54,458	$ 144,353
Gain (Loss) on Disposition of Property Plant Equipment		$ (1,182)		$ 535		$ 364		$ (252)		$ (8,410)		$ (1,510)		$ (6,710)		$ (41)		535	16,671	55,124
Release of cumulative translation adjustment	[2]																	(555)	$ 0	0
CANADA
Property Acquisition And Dispositions [Line Items]
Proceeds from Sale of Oil and Gas Property and Equipment																		1,700
Gain (Loss) on Disposition of Property Plant Equipment																		(1,000)
Release of cumulative translation adjustment																		$ (500)
STACK [Member]
Property Acquisition And Dispositions [Line Items]
Proceeds from Sale of Oil and Gas Property and Equipment																				63,500
Gain (Loss) on Disposition of Property Plant Equipment																				(56,900)
Arkoma Woodford [Member]
Property Acquisition And Dispositions [Line Items]
Proceeds from Sale of Oil and Gas Property and Equipment																				$ 65,300
Land Subject to Ground Leases | a																				26,000
Oil and Gas, Production Reserve, Energy | Boe																				1,700
Gain (Loss) on disposition of non-producing leasehold																				$ (3,500)
OKLAHOMA
Property Acquisition And Dispositions [Line Items]
Proceeds from Sale of Oil and Gas Property and Equipment																				7,200
Gain (Loss) on disposition of oil loading facilities																				$ 4,200

[1] Gains and losses on asset sales have been shown separately to illustrate the impact on quarterly results attributable to asset dispositions, which differ in significance from period to period and affect comparability. See Note 16. Property Dispositions for a discussion of notable dispositions.

[2] In conjunction with the Company’s sale of its Canadian operations in 2019, the cumulative translation adjustments were released. See Note 16. Property Dispositions for further information.